900WHP CLS63 ???

I just came across this. supposedly a 900WHP CLS63 from Weistec. Is this Real or Fake??

As posted from the link:
"Recently my friend had his CLS63 tuned by Weistec. This was a very unique tune and this is currently the only CLS in the world with the tune...and said tune is estimated to make over 900 WHEEL horsepower via upgraded software and turbos. Yep, you read that correctly. Now go watch the video!

*NOTE* this is part 1 of (at least) 2 parts. My friend was running almost on bands so didn't want to make more slides/burnouts. Stay "tuned" for more